Intel Arc B580 vs NVIDIA GeForce RTX 5070 Mobile Comparison

Head-to-Head Benchmarks

The recorded data shows a decisive sweep in favor of the NVIDIA GeForce RTX 5070 Mobile, which wins all nine head-to-head benchmark comparisons against the Intel Arc B580. The largest margin appears in PassMark DirectX 10, where the NVIDIA part scores 129 against Intel's 76, a 41.1% advantage. That result sets the tone: in every DirectX legacy and modern API test, the mobile GeForce delivers a substantial lead.

The biggest raw performance gap in the suite is in PassMark G3D, the general 3D graphics test. NVIDIA scores 20355, while Intel reaches 15748, a delta of 22.6%. This is a meaningful difference in overall rasterization throughput, and it aligns with the GeForce's higher shading unit count and its higher PassMark G3D percentile standing.

Compute workloads also favor NVIDIA, but by a smaller margin. In PassMark GPU Compute, the GeForce scores 8279 versus Intel's 7729, a 6.6% edge. The OpenCL result is more pronounced: NVIDIA posts 122238, Intel 92821, a 24.1% gap. Vulkan is closer, with NVIDIA at 116960 and Intel at 109672, a 6.2% difference. The pattern suggests NVIDIA's advantage grows in OpenCL-style workloads but narrows in Vulkan, where Intel's architecture holds up better relatively.

Legacy DirectX tests show consistent NVIDIA wins. PassMark DirectX 11: NVIDIA 192, Intel 128, a 33.3% lead. DirectX 12: NVIDIA 93, Intel 76, an 18.3% lead. DirectX 9: NVIDIA 214, Intel 183, a 14.5% lead. Even the 2D test favors NVIDIA: 896 against 709, a 20.9% margin. The Intel Arc B580 does not win a single comparison in the head-to-head data.

Where Each One Wins

Based on the benchmark results, the NVIDIA GeForce RTX 5070 Mobile wins in every measurable category. It holds advantages in compute, rasterization, legacy API performance, and even 2D throughput. The data indicates that for users prioritizing raw benchmark scores, the GeForce is the stronger choice across the board.

The Intel Arc B580, however, is not without its own favorable territory. Its average benchmark score of 23021 places it within 0.6% of the NVIDIA GeForce RTX 2080 and 0.7% of the RTX 3080, according to the nearest rivals data. That means the Intel card delivers performance comparable to those older desktop GPUs, which is a notable achievement for a product in the Battlemage generation. The Arc B580 also carries a 12 GB memory buffer versus 8 GB on the GeForce, which may matter in memory-heavy scenarios, though no benchmark in the recorded data directly tests capacity limits.

For compute efficiency per watt, the Intel part delivers 13.67 TFLOPS FP32 at a 190 W TDP, while the NVIDIA mobile part delivers 13.13 TFLOPS FP32 at a 50 W TDP. The mobile GeForce achieves nearly the same FP32 throughput with far lower power draw, making it the clear efficiency winner. The Arc B580's advantage lies in its higher absolute pixel rate (213.6 GPixel/s versus 68.40 GPixel/s) and texture rate (427.2 GTexel/s versus 205.2 GTexel/s), indicating stronger fillrate-oriented capabilities on paper, even though the benchmark scores favor NVIDIA overall.

Architecture Differences

The two GPUs come from different architectural lineages. Intel uses the Xe2-HPG architecture on the BMG-G21 chip, part of the Battlemage (Arc 5) generation. NVIDIA uses the Blackwell 2.0 architecture on the GB206 chip, part of the GeForce 50 Mobile generation. Both are fabricated on a 5 nm process at TSMC, but the transistor counts differ: Intel packs 19,600 million transistors on a 272 mm² die, while NVIDIA fits 21,900 million transistors on a smaller 181 mm² die. This yields a transistor density of 121.0M per mm² for NVIDIA versus 72.1M per mm² for Intel, indicating a denser design for the Blackwell chip.

The compute configurations diverge significantly. Intel has 2560 shading units, 160 texture mapping units, and 80 raster output units. NVIDIA has 4608 shading units, 144 TMUs, and 48 ROPs. Despite fewer shading units, Intel's higher clock speeds (2670 MHz base and boost) versus NVIDIA's lower clocks (907 MHz base, 1425 MHz boost) allow the Arc to reach 13.67 TFLOPS FP32, slightly above NVIDIA's 13.13 TFLOPS. In FP16, Intel reaches 27.34 TFLOPS using a 2:1 ratio, while NVIDIA stays at 13.13 TFLOPS with a 1:1 ratio.

Ray tracing hardware also differs. Intel includes 20 RT cores, while NVIDIA includes 36 RT cores plus 144 tensor cores. The tensor core presence gives NVIDIA a dedicated AI acceleration path that Intel's card lacks entirely. Memory architecture is another split: Intel uses 12 GB of GDDR6 on a 192-bit bus with 456.0 GB/s bandwidth, while NVIDIA uses 8 GB of GDDR7 on a 128-bit bus with 384.0 GB/s bandwidth. The Intel card has a wider bus and more memory, but the NVIDIA card uses faster GDDR7 memory at 24 Gbps effective versus 19 Gbps on Intel.

Power and form factor differences are stark. Intel's Arc B580 is a dual-slot desktop card with a 190 W TDP, requiring a 1x 8-pin power connector and a 450 W suggested PSU. NVIDIA's RTX 5070 Mobile is an integrated graphics processor (IGP) with a 50 W TDP, no power connectors, and no suggested PSU. The Intel card uses a PCIe 4.0 x8 interface, while NVIDIA uses PCIe 5.0 x16. Display outputs also differ: Intel offers 1x HDMI 2.1a and 3x DisplayPort 2.1, while NVIDIA's outputs are listed as "Portable Device Dependent."

Both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, so API compatibility is identical.

FAQ

Q: Which GPU has the higher average benchmark score?

A: The NVIDIA GeForce RTX 5070 Mobile has an average benchmark score of 29928, compared to Intel's 23021. The NVIDIA part also sits at the 75th percentile among all GPUs, while Intel sits at the 68th.

Q: How does the Intel Arc B580 compare to its nearest rivals?

A: The Intel Arc B580 is within 0.2% of the AMD Radeon RX 580 2048SP, 0.6% of the NVIDIA GeForce RTX 2080, 0.7% of the RTX 3080, and 1% of the NVIDIA P106-100, based on average scores.

Q: What is the memory configuration difference?

A: Intel uses 12 GB of GDDR6 on a 192-bit bus with 456.0 GB/s bandwidth. NVIDIA uses 8 GB of GDDR7 on a 128-bit bus with 384.0 GB/s bandwidth.

Q: Which GPU has more FP32 compute throughput?

A: Intel has a slight edge at 13.67 TFLOPS versus NVIDIA's 13.13 TFLOPS, despite NVIDIA having nearly double the shading units (4608 versus 2560).

Q: What is the power consumption difference?

A: Intel's Arc B580 has a 190 W TDP and requires a dual-slot cooler with an 8-pin power connector. NVIDIA's RTX 5070 Mobile has a 50 W TDP and is an integrated processor with no power connectors.

Q: How do the nearest rivals compare for the NVIDIA part?

A: The RTX 5070 Mobile is within 0.1% of the NVIDIA GeForce RTX 3070 Ti, 0.5% of the RTX 2080 Ti, 0.6% of the AMD Radeon RX 6800, and 1.7% of the AMD Radeon RX 6700.

Specification Differences

The two GPUs differ in nearly every specification category. The Intel Arc B580 uses the BMG-G21 chip with Xe2-HPG architecture, while NVIDIA uses the GB206 chip with Blackwell 2.0. Both are 5 nm TSMC parts, but Intel's die is 272 mm² with 19,600 million transistors, while NVIDIA's is 181 mm² with 21,900 million transistors.

Clock speeds: Intel runs at 2670 MHz base and boost, while NVIDIA runs at 907 MHz base and 1425 MHz boost. Memory clocks: Intel at 2375 MHz (19 Gbps effective), NVIDIA at 1500 MHz (24 Gbps effective). Shading units: Intel 2560, NVIDIA 4608. TMUs: Intel 160, NVIDIA 144. ROPs: Intel 80, NVIDIA 48. RT cores: Intel 20, NVIDIA 36. Tensor cores: Intel none, NVIDIA 144.

Pixel rate: Intel 213.6 GPixel/s, NVIDIA 68.40 GPixel/s. Texture rate: Intel 427.2 GTexel/s, NVIDIA 205.2 GTexel/s. FP16: Intel 27.34 TFLOPS (2:1), NVIDIA 13.13 TFLOPS (1:1). TDP: Intel 190 W, NVIDIA 50 W. Slot width: Intel dual-slot, NVIDIA IGP. Power connectors: Intel 1x 8-pin, NVIDIA none. Suggested PSU: Intel 450 W, NVIDIA none. Bus interface: Intel PCIe 4.0 x8, NVIDIA PCIe 5.0 x16.

Display outputs: Intel 1x HDMI 2.1a and 3x DisplayPort 2.1, NVIDIA portable device dependent. Dimensions: Intel 272 mm length, 115 mm height, 45 mm width; NVIDIA has no recorded dimensions. Release dates: Intel 2024-12-12, NVIDIA 2025-04-14. Intel has a launch MSRP of 249 USD; NVIDIA has no recorded launch MSRP. The Intel predecessor is Alchemist, the NVIDIA predecessor is GeForce 40 Mobile.

The Verdict

The benchmark data is unambiguous: the NVIDIA GeForce RTX 5070 Mobile outperforms the Intel Arc B580 in every recorded test. The NVIDIA part leads by double digits in most workloads, with the smallest margins in Vulkan (6.2%) and GPU Compute (6.6%), and the largest in DirectX 10 (41.1%) and DirectX 11 (33.3%). For users seeking maximum benchmark scores, the GeForce is the clear pick.

The Intel Arc B580 remains competitive in specific contexts. Its 12 GB memory buffer exceeds NVIDIA's 8 GB, which could benefit memory-intensive applications, though no benchmark in the data directly confirms this. Its higher pixel and texture rates suggest strong fillrate characteristics, and its FP32 throughput is slightly above NVIDIA's. The Intel card also holds a 68th percentile ranking versus NVIDIA's 75th, a modest gap.

The architectural split is decisive for different use cases. NVIDIA's 50 W TDP makes it suitable for mobile implementations, while Intel's 190 W dual-slot design targets desktop builds. The NVIDIA part includes tensor cores for AI workloads and more RT cores for ray tracing, while Intel offers more memory and higher clock speeds. The recorded data shows NVIDIA winning all nine head-to-head comparisons, and the average benchmark score difference of 6907 points (29928 versus 23021) confirms a substantial performance gap. Users who prioritize raw benchmark results should choose the GeForce RTX 5070 Mobile; those who need more memory capacity or desktop form factor flexibility may still consider the Arc B580, but the performance data favors NVIDIA in every measured test.